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Long-term debt, Cash Flow Hedges and Foreign Currency Forward Exchange Contracts - Additional Information (Detail) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 07, 2016 USD ($) | Dec. 31, 2015 USD ($) Derivative | Sep. 30, 2015 USD ($) Derivative | Jun. 30, 2015 USD ($) Derivative | Dec. 31, 2014 USD ($) | Mar. 31, 2011 USD ($) Derivative | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2015 USD ($) Derivative | Jun. 03, 2016 USD ($) | Aug. 07, 2014 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, starting date | Jun. 07, 2016 |  |  |  |  |  |  |  |  |  |
Line of credit facility, maturity month | 2019-08 |  |  |  |  |  |  |  |  |  |
Rate adjustment to weighted average federal funds rate for credit facility borrowings |  |  |  |  |  |  | 0.50% |  |  |  |
Rate adjustment to one month Eurodollar rate on credit facility borrowings |  |  |  |  |  |  | 1.00% |  |  |  |
Accounts receivable securitization program credit facility, borrowing capacity |  |  |  |  |  |  | $ 400,000,000 |  |  |  |
Accounts receivable securitization program credit facility, amount outstanding |  |  |  |  |  |  | 280,000,000 |  |  |  |
Reduction of long-term debt |  |  |  |  |  |  | 843,351,000 | $ 255,658,000 |  |  |
Debt instrument carrying amount |  | $ 3,500,000,000 |  |  |  |  | 3,600,000,000 |  | $ 3,500,000,000 |  |
Fair value of debt |  | $ 3,500,000,000 |  |  |  |  | 3,600,000,000 |  | $ 3,500,000,000 |  |
Number of additional forward starting interest rate swaps | Derivative |  |  | 4 |  |  |  |  |  |  |  |
Maturity date of interest rate cash flow hedges |  |  |  |  |  | May 31, 2015 |  |  |  |  |
Two Point Three Eight Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  |  |  |  |  | 4 |  |  |  |  |
Fixed rate payable on interest rate swap |  |  |  |  |  | 2.38% |  |  |  |  |
One Point Nine One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  |  |  |  |  | 3 |  |  |  |  |
Fixed rate payable on interest rate swap |  |  |  |  |  | 1.91% |  |  |  |  |
One Point Three One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  |  |  |  |  |  |  |  | 9 |  |
Maturity date of interest rate cash flow hedges |  |  |  |  |  |  |  |  | Apr. 15, 2019 |  |
Fixed rate payable on interest rate swap |  | 1.31% |  |  |  |  |  |  | 1.31% |  |
One Point Four Zero Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  |  |  | 4 |  |  |  |  |  |  |
Maturity date of interest rate cash flow hedges |  |  |  | Apr. 15, 2019 |  |  |  |  |  |  |
Average fixed rate payable on interest rate swap |  |  |  | 1.40% |  |  |  | 1.40% |  |  |
One Point Two Three Percent Forward Starting Interest Rate Swaps One |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maturity date of interest rate cash flow hedges |  |  | Apr. 15, 2019 |  |  |  |  |  |  |  |
Average fixed rate payable on interest rate swap |  |  | 1.23% |  |  |  |  |  |  |  |
One Point Two One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  | 1 |  |  |  |  |  |  |  |  |
Maturity date of interest rate cash flow hedges |  | Apr. 15, 2019 |  |  |  |  |  |  |  |  |
Fixed rate payable on interest rate swap |  | 1.21% |  |  |  |  |  |  | 1.21% |  |
Interest Rate Swap |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair value of our interest rate swaps |  | $ 1,000,000 |  |  |  |  | 19,000,000 |  | $ 1,000,000 |  |
Fair value of our interest rate swaps, liability |  | 6,000,000 |  |  |  |  | 8,000,000 |  | 6,000,000 |  |
Fair value of our interest rate swaps, assets |  | 5,000,000 |  |  |  |  |  |  | 5,000,000 |  |
Interest Rate Swap | Other Noncurrent Liabilities |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair value of our interest rate swaps, liability |  |  |  |  |  |  | 11,000,000 |  |  |  |
Foreign Currency Forward Exchange Contracts |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net cash inflows (outflows) |  |  |  |  |  |  | $ 50,000,000 | $ (3,000,000) |  |  |
Cash Flow Hedging |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of additional forward starting interest rate swaps | Derivative |  |  |  |  |  | 7 |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  |  |  |  | $ 825,000,000 |  |  |  |  |
Cash Flow Hedging | Two Point Three Eight Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  |  |  |  | 600,000,000 |  |  |  |  |
Cash Flow Hedging | One Point Nine One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  |  |  |  | $ 225,000,000 |  |  |  |  |
Cash Flow Hedging | One Point Three One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  | 1,000,000,000 |  |  |  |  |  |  | 1,000,000,000 |  |
Cash Flow Hedging | One Point Four Zero Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  |  | $ 500,000,000 |  |  |  | $ 500,000,000 |  |  |
Cash Flow Hedging | Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  | $ 400,000,000 |  |  |  |  |  |  |  |
Cash Flow Hedging | One Point Two Three Percent Forward Starting Interest Rate Swaps One |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  | 100,000,000 |  |  |  |  |  |  |  |
Cash Flow Hedging | One Point Two Three Percent Forward Starting Interest Rate Swaps Two |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  | 200,000,000 |  |  |  |  |  |  |  |
Cash Flow Hedging | One Point Two Three Percent Forward Starting Interest Rate Swaps Three |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  |  | $ 100,000,000 |  |  |  |  |  |  |  |
Cash Flow Hedging | One Point Two One Percent Forward Starting Interest Rate Swaps |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Notional amount of interest rate cash flow hedges |  | $ 100,000,000 |  |  |  |  |  |  | $ 100,000,000 |  |
Accounts Receivable Securitization Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maturity month |  |  |  |  |  |  | 2018-12 |  |  |  |
Accounts receivable securitization program, additional capacity |  |  |  |  |  |  | $ 120,000,000 |  |  |  |
Senior Notes 7.125% |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior notes, interest rate |  |  |  |  |  |  | 7.125% |  |  |  |
Senior notes, maturity date |  |  |  |  |  |  | Jun. 30, 2016 |  |  |  |
Reduction of long-term debt |  |  |  |  |  |  | $ 400,000,000 |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity | $ 800,000,000 |  |  |  |  |  | 800,000,000 |  |  |  |
Line of credit facility amount outstanding |  |  |  |  |  |  | $ 0 |  |  |  |
Current applicable margins |  |  |  |  |  |  | 1.50% |  |  |  |
Line of credit facility, available borrowing capacity |  |  |  |  |  |  | $ 751,000,000 |  |  |  |
Letters of credit, outstanding |  |  |  |  |  |  | 34,000,000 |  |  |  |
Revolving Credit Facility | Short Term on Demand Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility amount outstanding |  |  |  |  |  |  | 15,000,000 |  |  |  |
Revolving Credit Facility | Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity |  |  |  |  |  |  | $ 125,000,000 |  |  |  |
Revolving Credit Facility | ABR-based loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current applicable margins |  |  |  |  |  |  | 0.50% |  |  |  |
Revolving Credit Facility | Minimum | One Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 0.50% |  |  |  |
Revolving Credit Facility | Minimum | One Two Three Six Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 1.50% |  |  |  |
Revolving Credit Facility | Maximum | One Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 1.25% |  |  |  |
Revolving Credit Facility | Maximum | One Two Three Six Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 2.25% |  |  |  |
Term Loan A |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility amount outstanding |  |  |  |  |  |  | $ 1,897,000,000 |  |  |  |
Line of credit facility increased amount | $ 200,000,000 |  |  |  |  |  |  |  |  |  |
Current applicable margins |  |  |  |  |  |  | 1.50% |  |  |  |
Term Loan A | Quarterly installment payments commence in the fourth quarter of 2014 through September, 2016 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Scheduled principal payments made |  |  |  |  | $ 11,000,000 |  |  |  |  |  |
Term Loan A | Quarterly installment payments after September, 2016 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Scheduled principal payments made |  |  |  |  | $ 22,000,000 |  |  |  |  |  |
Term Loan A | ABR-based loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current applicable margins |  |  |  |  |  |  | 0.50% |  |  |  |
Term Loan A | Minimum | One Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 0.50% |  |  |  |
Term Loan A | Minimum | One Two Three Six Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 1.50% |  |  |  |
Term Loan A | Maximum | One Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 1.25% |  |  |  |
Term Loan A | Maximum | One Two Three Six Month Eurodollar Rate Plus Index Based Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consolidated Leverage Ratio |  |  |  |  |  |  | 2.25% |  |  |  |
New Senior Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior notes, issued |  |  |  |  |  |  | $ 1,400,000,000 |  |  |  |
New Senior Secured Notes | 3.75% Senior Secured Notes due 2019 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior notes, issued |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
Senior notes, interest rate |  |  |  |  |  |  |  |  |  |  | 3.75%
Senior notes, maturity date |  |  |  |  |  |  | Aug. 01, 2019 |  |  |  |
New Senior Secured Notes | 4.75% Senior Secured Notes due 2022 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior notes, issued |  |  |  |  |  |  | $ 700,000,000 |  |  | $ 400,000,000 | $ 300,000,000
Senior notes, interest rate |  |  |  |  |  |  | 4.75% |  |  |  |
Senior notes issued percentage |  |  |  |  |  |  |  |  |  | 101.50% |
Senior notes yield percentage |  |  |  |  |  |  |  |  |  | 4.35% |
Senior notes, maturity date |  |  |  |  |  |  | Aug. 01, 2022 |  |  |  |
New Senior Secured Notes | 5.00% Senior Secured Notes due 2026 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Senior notes, issued |  |  |  |  |  |  |  |  |  | $ 400,000,000 |
Senior notes, interest rate |  |  |  |  |  |  |  |  |  | 5.00% |
Senior notes, maturity date |  |  |  |  |  |  | Jun. 01, 2026 |  |  |  |

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- Definition Average fixed interest rate related to the group of interest rate derivatives. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period of all assets and liabilities used in operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of increase (decrease) of the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Date the credit facility first became available, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition This is the principal amount outstanding for securitized loans only (across all types of loans). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=64830801&loc=d3e107314-111719 + Details
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